EP 3288175 B1 20201014 - METHOD FOR SENSORLESS CONTROL OF A PMSM MOTOR
Title (en)
METHOD FOR SENSORLESS CONTROL OF A PMSM MOTOR
Title (de)
VERFAHREN ZUR SENSORLOSEN STEUERUNG EINES PMSM MOTORS
Title (fr)
PROCÉDÉ DE COMMANDE SANS CAPTEUR D'UN MOTEUR PMSM
Publication
Application
Priority
CH 10792016 A 20160822
Abstract (en)
[origin: US2018054148A1] A method and system for adaptive sensorless determination of the position of a PMSM motor is described. The system and method include: determining the rotor position and the rotor polarity by means of discrete signal injection for the range between standstill up to low rotational speed; determining the rotor position by means of continuous signal injection at a rotational speed that is lower than a first changeover speed; determining the rotor position by means of back EMF at a rotational speed that is higher than the first changeover speed; wherein by means of a motor control system, depending on the rotational speed, a switch is made between rotor position determination by continuous signal injection and rotor position determination by back EMF; and wherein during movement of the rotor, the rotor polarity and/or the rotor position are/is monitored and optionally adjusted at a point in time using the rotor polarity and/or the rotor position at a previous point in time.
IPC 8 full level
H02P 6/18 (2016.01); H02P 6/182 (2016.01)
CPC (source: CH CN EP KR US)
H02K 21/02 (2013.01 - CH); H02P 6/18 (2013.01 - CH); H02P 6/181 (2013.01 - EP US); H02P 6/182 (2013.01 - CN EP KR US); H02P 6/183 (2013.01 - CN EP US); H02P 21/18 (2016.02 - CH); H02P 21/24 (2016.02 - US); H02P 21/32 (2016.02 - US); H02P 25/03 (2016.02 - KR); H02P 6/185 (2013.01 - US); H02P 2203/03 (2013.01 - KR); H02P 2203/11 (2013.01 - US); H02P 2207/055 (2013.01 - US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 3288175 A1 20180228; EP 3288175 B1 20201014; CH 712829 A1 20180228; CN 107769634 A 20180306; JP 2018033302 A 20180301; KR 102446699 B1 20220923; KR 20180021660 A 20180305; US 2018054148 A1 20180222
DOCDB simple family (application)
EP 17187061 A 20170821; CH 10792016 A 20160822; CN 201710722844 A 20170822; JP 2017153537 A 20170808; KR 20170106235 A 20170822; US 201715682225 A 20170821